(n.) An elementary substance; a metal which combined with oxygen forms lime. It is of a pale yellow color, tenacious, and malleable. It is a member of the alkaline earth group of elements. Atomic weight 40. Symbol Ca.
Example Sentences:
(1) In studies of calcium metabolism in 13 unselected patients with untreated sarcoidosis all were normocalcaemic but five had hypercalcuria.
(2) After stimulation with lipopolysaccharide and calcium ionophore A23187, culture supernatants of clones c18A and c29A showed cytotoxic activity against human melanoma A375 Met-Mix and other cell lines which were resistant to the tumor necrosis factor, lymphotoxin and interleukin 1.
(3) The half-life of 45Ca in the various calcium fractions of both types of bone was 72 hours in both the control and malnourished groups except the calcium complex portion of the long bone of the control group, which was about 100 hours.
(4) Calcium alginate dressings have been used in the treatment of pressure ulcers and leg ulcers.
(5) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
(6) Thus adrenaline, via pre- and post-junctional adrenoceptors, may contribute to enhanced vascular smooth muscle contraction, which most likely is sensitized by the elevated intracellular calcium concentration.
(7) It includes preincubation of diluted plasma with ellagic acid and phospholipids and a starting reagent that contains calcium and a chromogenic peptide substrate for thrombin, Tos-Gly-Pro-Arg-pNA.
(8) The results show that endolymph is extremely inhomogenous with respect to calcium potentials.
(9) The occupation of the high affinity calcium binding site by Ca(II) and Mn(II) does not influence the Cu(II) binding process, suggesting that there is no direct interaction between this site and the Cu(II) binding sites.
(10) This was unlike the action of the calcium channel blocker, cadmium, which reduced the calcium action potential and the a.h.p.
(11) Increases in extracellular calcium antagonized the negative inotropic effect.
(12) Plasma membranes were isolated from rat kidney and their transport properties for sodium, calcium, protons, phosphate, glucose, lactate, and phenylalanine were investigated.
(13) In experiments performed to determine whether PtdIns(4,5)P2 hydrolysis induced by TRH may have been caused by the elevation of [Ca2+]i, the following results were obtained: the effect of TRH to decrease the level of PtdIns(4,5)P2 was not reproduced by the calcium ionophore A23187 or by membrane depolarization with 50 mM K+; the calcium antagonist TMB-8 did not inhibit the TRH-induced decrease in PtdIns(4,5)P2; and, most importantly, inhibition by EGTA of the elevation of [Ca2+]i did not inhibit the TRH-induced decrease in PtdIns(4,5)P2.
(14) The distribution of gelsolin, a calcium-dependent actin-severing and capping protein, in the retina of the developing and adult rabbit was studied.
(15) In K+-depolarized basilar arteries, ifenprodil competitively antagonized the response to Ca2+, and this was enhanced by pre-incubation in calcium hopantenate.
(16) Thirty of the 32 women of the calcitonin group and 27 of 28 women of the calcium group finished treatment.
(17) The influence of calcium ions on the electrophoretic properties of phospholipid stabilized emulsions containing various quantities of the sodium salts of oleic acid (SO), phosphatidic acid (SPA), phosphatidylinositol (SPI), and phosphatidylserine (SPS) was examined.
(18) Hypercalcitoninemia was the most pronounced in patients with cardiac rhythm disorders and a simultaneous reduction in total serum calcium.
(19) The effects of low doses of dihydropyridine (DHP) calcium channel antagonists nimodipine, nifedipine, (-)-R-202-791, and amlodipine, the DHP calcium channel agonist BAY K 8644 were investigated on clonic convulsions to pentylenetetrazole (PTZ) in mice.
(20) A comprehensive review of the roentgenographic features of calcium pyrophosphate crystal deposition disease (pseudogout) is presented.
Druse
Definition:
(n.) A cavity in a rock, having its interior surface studded with crystals and sometimes filled with water; a geode.
(n.) One of a people and religious sect dwelling chiefly in the Lebanon mountains of Syria.
Example Sentences:
(1) A similar decline in Arabs and Druse has not been identified and awaits further analysis.
(2) Histologically, a destructive variant of the development of actinomycotic granulomas with degenerating druses of the ray fungus and mycelial inclusions was revealed.
(3) The Ytb allelic frequencies ranged between 0.1005 and 0.1522 in the Jewish communities and were 0.1294 and 0.1429 in the Arab and Druse communities, respectively.
(4) The lobe area and the diameter of the central veins were stated to have a different morphometric index, that demonstrates the presence, in the dog liver, of certain lobar complexes arranged like druses in a rock crystal.
(5) Characteristic actinomycetic druses are found histologically only in the right Fallopian tube.
(6) The pin-point lesions corresponded to single enlarged retinal pigment epithelial cells with lipid accumulation and the larger area represented a small, localized retinal pigment epithelial detachment (soft druse).
(7) It was possible to distinguish between albipunctatus-dots and druses by fluorescenceangiography.
(8) The prevalence of at least one druse within 1500 microns of the foveal center was extremely common (over 80% in each age group over 30 years of age) and not age related.
(9) The Yta and Ytb allelic frequencies were determined by examining the red cells of 1683 blood samples from Israeli Jews, Arabs, and Druse with anti-Yta and -Ytb.
(10) The soft druse was associated with thickening of the basement membrane of the retinal pigment epithelium.